Gamma settings with Sony Vegas.. I'm a bit confused now. at DVinfo.net

Glenn Thomas · September 7th, 2012, 08:29 AM

Over the past few years when editing Cineform files in Sony Vegas (I'm still using v10), I've been using the Sony Color Corrector 'Studio RGB to Computer RGB' preset to view any video I'm editing with correct gamma settings. But turn it off when rendering back to a Cineform AVI. And out of habit, I still find myself using HD Link and Firstlight.

But I've I've just made the effort to start using GoPro Cineform Studio, at least for colouring or making adjustments to my clips. Earlier tonight I had a clip I'd rendered out from Vegas that I'd used a Boris Red plugin on. I loaded that into Cineform studio to tweak the colours and noticed it still looked much the same as it did in Vegas without the 'Studio RGB to Computer RGB' preset. Anyway, adjustments were made to make it look nice. I then opened the clip back in Vegas to render out a WMV file, which I would normally leave the 'Studio RGB to Computer RGB' preset turned on to keep the gamma the same when rendering. But this time I didn't need that. The gamma appeared the same as it did in Cineform Studio.

So I'm just not sure what's going on here. Does Cineform Studio use the same gamma as Vegas now? Even when I open the file in Media Player classic, the gamma is still the same and doesn't look any different than in Vegas, which previously would never happen.

David Newman · September 8th, 2012, 09:46 PM

Nothing has changed. The only way I an think that you many have a seemless workflow, if you exported as 4:4:4 rather than 4:2:2, support StudioRGB in 4:4:4 is more common. Otherwise, good news I guess.

Glenn Thomas · September 9th, 2012, 02:52 AM

Thanks David. Although I don't remember changing that, and it's still set to YUV 4:2:2. But I might give Studio RGB 4:4:4 a try if it's more common and eliminates the need for that gamma conversion.
I'll do a few tests and see how it goes.

David Newman · September 9th, 2012, 10:24 AM

Note: this is not a gamma issue, rather a black/white level different better video system and computer RGB. Gamma issues are Mac/QuickTime related, so you don't have that.

September 7th, 2012, 08:29 AM	#1
Glenn Thomas Major Player Join Date: May 2005 Location: Sydney, Australia Posts: 320	Gamma settings with Sony Vegas.. I'm a bit confused now. Over the past few years when editing Cineform files in Sony Vegas (I'm still using v10), I've been using the Sony Color Corrector 'Studio RGB to Computer RGB' preset to view any video I'm editing with correct gamma settings. But turn it off when rendering back to a Cineform AVI. And out of habit, I still find myself using HD Link and Firstlight. But I've I've just made the effort to start using GoPro Cineform Studio, at least for colouring or making adjustments to my clips. Earlier tonight I had a clip I'd rendered out from Vegas that I'd used a Boris Red plugin on. I loaded that into Cineform studio to tweak the colours and noticed it still looked much the same as it did in Vegas without the 'Studio RGB to Computer RGB' preset. Anyway, adjustments were made to make it look nice. I then opened the clip back in Vegas to render out a WMV file, which I would normally leave the 'Studio RGB to Computer RGB' preset turned on to keep the gamma the same when rendering. But this time I didn't need that. The gamma appeared the same as it did in Cineform Studio. So I'm just not sure what's going on here. Does Cineform Studio use the same gamma as Vegas now? Even when I open the file in Media Player classic, the gamma is still the same and doesn't look any different than in Vegas, which previously would never happen. __________________ Personal Website: http://www.avene.org

September 8th, 2012, 09:46 PM	#2
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	Re: Gamma settings with Sony Vegas.. I'm a bit confused now. Nothing has changed. The only way I an think that you many have a seemless workflow, if you exported as 4:4:4 rather than 4:2:2, support StudioRGB in 4:4:4 is more common. Otherwise, good news I guess. __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

September 9th, 2012, 02:52 AM	#3
Glenn Thomas Major Player Join Date: May 2005 Location: Sydney, Australia Posts: 320	Re: Gamma settings with Sony Vegas.. I'm a bit confused now. Thanks David. Although I don't remember changing that, and it's still set to YUV 4:2:2. But I might give Studio RGB 4:4:4 a try if it's more common and eliminates the need for that gamma conversion. I'll do a few tests and see how it goes. __________________ Personal Website: http://www.avene.org

September 9th, 2012, 10:24 AM	#4
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	Re: Gamma settings with Sony Vegas.. I'm a bit confused now. Note: this is not a gamma issue, rather a black/white level different better video system and computer RGB. Gamma issues are Mac/QuickTime related, so you don't have that. __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman